A note on chemiluminescence in low-pressure hydrogen and methane–nitrous oxide flames

Absolute OH(A) and CH(A) concentrations were determined in low-pressure H2–air and CH4–N2O flames, respectively, by measuring absolute chemiluminescence yields at 310 and 430 nm. From spatial profiles and intensities in these and other flames, we deduce that two reactions are responsible in each case, and derive rate constants for all.